Q. Evaluate the logarithm.Round your answer to the nearest thousandth.log3(451)≈
Problem Understanding: Understand the problem.We need to evaluate the logarithm of the fraction451 with base 3 and round the result to the nearest thousandth.
Simplifying the Expression: Use the logarithm properties to simplify the expression.We can use the property that log(ba)=log(a)−log(b) to rewrite the given logarithm as:log3(1)−log3(45)
Evaluating log(1): Evaluate log3(1).The logarithm of 1 to any base is 0 because any number to the power of 0 is 1. So, log3(1)=0.
Factoring 45: Factor 45 to express it as a product of powers of 3.45 can be factored into 3×15, and 15 can be further factored into 3×5. So, 45=32×5.
Separating the Factors: Use the logarithm properties to separate the factors.We can use the property that log(ab)=log(a)+log(b) to rewrite log3(45) as:log3(32)+log3(5)
Evaluating log(32): Evaluate log3(32).Since the base of the logarithm and the base of the exponent are the same, log3(32)=2.
Evaluating log(5): Evaluate log3(5).Since 5 is not a power of 3, we cannot simplify this logarithm further without a calculator. We will need to use a calculator to find the value of log3(5).
Calculating log(32): Calculate log3(5) using a calculator.Using a calculator, we find that log3(5)≈1.465 (rounded to the nearest thousandth).
Combining the Results: Combine the results to find the final value of the original logarithm.Now we combine the results from steps 3, 6, and 8:log3(451)=log3(1)−(log3(32)+log3(5))=0−(2+1.465)=−2−1.465=−3.465
Rounding the Final Answer: Round the final answer to the nearest thousandth.The final answer is already rounded to the nearest thousandth, so the final answer is −3.465.
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